On Thu, 12 Feb 2026 11:34:41 +0000 Mark Brown <[email protected]> wrote:
> On Thu, Feb 12, 2026 at 01:05:38PM +0300, Onur Özkan wrote: > > On rk3588s, `dmesg | grep 'tyr'` logs: > > > > tyr fb000000.gpu: supply SRAM not found, using dummy regulator > > > > This happens because Tyr calls Regulator<Enabled>::get() for SRAM, > > which goes through the non-optional regulator_get() path. If the > > device tree doesn't provide sram-supply, regulator core falls back > > to a dummy regulator and writes that log. > > > Panthor handles SRAM as optional and tolerates missing sram-supply. > > Does the RAM really work without power? If the platform has no separate sram-supply (meaning that rail is coupled to mali), RAM should still be powered and work fine. Panthor already relies on this model by treating sram-supply as optional and as far as I can see there are no RAM issues on Panthor. - Onur
